EP 0317706 B1 19921111 - FLUE GAS CHANNEL FOR TREATING A FLUE GAS
Title (en)
FLUE GAS CHANNEL FOR TREATING A FLUE GAS
Publication
Application
Priority
DE 3736306 A 19871027
Abstract (en)
[origin: US4950473A] Apparatus and method for reducing nitrogen oxides in flue gas within a flue gas duct includes a number of distributor tubes for the injection of a reducing agent into the flue gas within the duct. Each distributor tube includes a control valve to be able to set an appropriate injection of the reducing agent to respond to different concentrations of the nitrogen oxides within the flue gas over the cross section of the flue gas duct. Each distributor tube comprises at least two parallel distributor tube segments which extend from opposite sides of the flue gas duct to the center of the flue gas duct. The two parallel distribution tube segments include a plurality of openings along the lengths thereof to supply the reducing agent generally evenly throughout their aligned portions of the cross section. The control valve is employed to adjust the reducing agent to provide the proper quantity thereof which corresponds to the particular concentration of nitrogen oxides within the flue gas at each corresponding portion of the entire cross section.
IPC 1-7
IPC 8 full level
B01D 53/56 (2006.01); F23J 15/00 (2006.01)
CPC (source: EP US)
B01D 53/56 (2013.01 - EP US); F23J 15/003 (2013.01 - EP US); F23J 2215/10 (2013.01 - EP US)
Citation (examination)
- JP S58119326 A 19830715 - MITSUBISHI HEAVY IND LTD
- Energie Spektrum, Juni 1987, J. Becker, S. 25-48
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
US 4950473 A 19900821; AT E82152 T1 19921115; DE 3736306 C1 19880929; DE 3875910 D1 19921217; EP 0317706 A1 19890531; EP 0317706 B1 19921111
DOCDB simple family (application)
US 26347088 A 19881027; AT 88111833 T 19880722; DE 3736306 A 19871027; DE 3875910 T 19880722; EP 88111833 A 19880722